Book support rack



FIG. 1 is a front perspective view of a book support rack showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side elevational view thereof, and of which a view taken from left side is a mirror image. 

The ornamental design for a book support rack, as shown and described. 